Αρχειοθήκη ιστολογίου

Αλέξανδρος Γ. Σφακιανάκης
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5
Άγιος Νικόλαος Κρήτη 72100
2841026182
6032607174

Δευτέρα 19 Φεβρουαρίου 2018

A 74-year-old woman with dyspnoea and a mass in the right atrium

A 74-year-old woman was admitted with pericardial effusion causing haemodynamic instability. On echographic and radiological examination, a mass was identified in the right atrium, extending into the epicardial layer. In the differential diagnosis of a cardiac mass, benign primary lesions like a myxoma must be distinguished from rare primary cardiac malignancies like sarcomas or more frequent secondary tumours. These include localisations of lymphomyeloproliferative disease and metastases of a melanoma or various subtypes of carcinoma. In this case, histopathological examination of a surgical biopsy showed findings consistent with a high-grade angiosarcoma. Because of the size and localisation, as well as the presence of a possible metastasis in the rib, surgical treatment was not possible. After diagnosis, the patient developed multiple additional metastasis. She received palliative radiotherapy to control the pain and died 10 months after the initial diagnosis was made. Median reported survival is 6 months.



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Bier spots treated with intense pulsed light



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A surgical case of inflammatory abdominal aortic aneurysm that responded remarkably to preoperative steroid therapy

Abstract
We describe the surgical management of a 58-year-old man with inflammatory abdominal aortic aneurysm (IAAA) following treatment with preoperative steroids. The patient was transferred to our institution for abdominal pain and fever. Contrast-enhanced computed tomography showed juxtarenal abdominal aortic aneurysm surrounded by dense perianeurysmal fibrous tissue. Under a diagnosis of IAAA, steroid therapy with prednisolone was initiated to control the perianeurysmal inflammation. It continued for 3 weeks with a decreasing dose schedule, with remarkable decrease in the soft tissue mass. The patient underwent elective surgery 21 days after commencing steroid therapy. During surgery, adjacent organs were adherent to the aneurysmal wall, but fibrotic change to the retroperitoneum was very limited. He recovered uneventfully, and was discharged on postoperative Day 10. Therefore, it can be concluded that preoperative steroid therapy could minimize the operative risk for IAAAs, and improve surgical outcome.

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Successful management of an aorto-gastric fistula occurring 15 years after oesophagectomy with covered aortic stent graft placement followed by open surgery

Abstract
Aorto-gastric fistula (AGF) is an uncommon and life threatening complication of oesophagectomy. Usually occurring in the immediate weeks following the procedure at anastomosis lines, this case describes a rare development of an AGF 15 years after an oesophagectomy due to the presence of a benign ulcer. Initially successful endovascular stenting of the thoracic aorta was followed by re-bleed, further stenting but eventually open surgery was required.

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Tracheo-oesophageal fistula: a delayed complication of missed inhaled magnetic toys

Abstract
Delayed diagnosis of tracheobronchial foreign body (FB) aspiration is not uncommon in children. It occurs when symptoms are underappreciated and/or radiological findings are overlooked. In such cases serious complications can arise, which make the diagnosis and removal of the FB much more difficult. Here, we present a case where FB aspiration was misdiagnosed as asthma after a radio-opaque FB on the chest radiograph was missed, leading to formation of a tracheo-oesophageal fistula as a rare delayed complication.

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Study of the efficacy of carboxytherapy in alopecia

Summary

Background

Management of alopecia areata (AA) and androgenetic alopecia (AGA) is often challenging. The use of carboxytherapy may be a novel therapeutic option for such cases.

Objective

To evaluate the clinical efficacy and safety of carboxytherapy in alopecia areata and androgenetic alopecia.

Patients and methods

This study was conducted on 80 patients with alopecia divided into two groups; Group I included 40 AA patients (Group IA received carboxytherapy and Group IB control received placebo), and Group II included 40 AGA patients (Group IIA received carboxytherapy and Group IIB control received placebo), and followed up monthly for 3 months. They were evaluated clinically (by assessment of Severity of Alopecia Tool (SALT) score in group I, and Sinclair scale and Norwood-Hamilton scale in group II), by dermoscopy and digital dermoscopy at each visit.

Results

Group IA patients showed significant clinical improvement in SALT score and dermoscopic improvement after carboxytherapy and at the end of follow-up period with significant reduction in dystrophic hair, black dots, yellow dots, and tapered hair coinciding with significant emergence of regrowing hair. Group IIA patients showed significant clinical and dermoscopic improvement after carboxytherapy with significant increase in hair density measured by digital dermoscopy. However, regression of these results was observed during the follow-up period but was still significantly better than before treatment. There were statistically significant improvements in clinical score, global assessments, dermoscopic, and digital dermoscopic findings in both group IA and group IIA received carboxytherapy in comparison with group IB and group IIB received placebo injections, respectively.

Conclusion

Carboxytherapy seems to be a promising therapeutic option for patchy AA and could be helpful as an adjuvant therapy of AGA but more than 6 sessions are required and adjuvants are recommended for maintenance of the results.



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Safety assessment, biological effects, and mechanisms of Myrica rubra fruit extract for anti-melanogenesis, anti-oxidation, and free radical scavenging abilities on melanoma cells

Summary

Objective

Currently, the cosmetic and medical industries are paying considerable attention to solve or prevent skin damage or diseases, such as hyperpigmentation and oxidation and free radical damage. In this study, the effective compounds in Myrica rubra fruit were extracted and studied the biological effects of these M. rubra fruit extracts.

Methods

In this study, we extracted M. rubra fruit using solutions with various ratios of water to ethanol (100:0, 50:50, 5:95) and studied the anti-melanogenesis, anti-oxidation and radical scavenging effects of these M. rubra fruit extracts on two melanoma cell lines: mouse melanoma (B16-F0) and human melanoma (A2058). The cytotoxicity, melanin synthesis, mushroom and cellular tyrosinase activities, enzyme kinetics, melanogenesis-related gene expression, melanogenesis-related protein secretion, radical DPPH scavenging activity and ROS inhibition after treatment with M. rubra fruit extracts were determined.

Results

The results showed that the water extract of M. rubra fruit was less cytotoxic to the melanoma cell lines, effectively inhibited melanin synthesis and tyrosinase activity and down-regulated the gene expression and protein secretion of MITF and TRP-1. In addition, the M. rubra fruit extracts also showed the abilities to scavenge DPPH free radicals and suppress ROS production. Finally, the effective compounds in the water extract were Myricetin-O-deoxyhexoside, Quercetin-O-deoxyhexoside, and Kaempferol-O-hexoside determined by LC/MS/MS assay.

Conclusion

Overall, the water extract of M. rubra fruit is a safe and effective melanin inhibitor and anti-oxidant and can be applied widely in the fields of cosmetics and medicine.



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Vitamin D levels in acne vulgaris patients treated with oral isotretinoin

Summary

Background/Objectives

Acne vulgaris is a common inflammatory skin disease. Vitamin D deficiency plays a role in many inflammatory skin diseases. It may play a role in pathogenesis of acne vulgaris. This study aimed to assess serum levels of 25 hydroxy vitamin D in patients with acne vulgaris before and after treatment with isotretinoin and its relation with acne vulgaris severity.

Methods

Ninety patients with acne vulgaris and 60 age-sex matched healthy subject as controls have been recruited in this study. Patients were treated with 0.75 mg/kg/d isotretinoin for 3 months. Serum level of 25 hydroxy vitamin D has been measured at baseline and after treatment.

Results

Serum levels of 25 hydroxy vitamin D were significantly higher in patients with acne vulgaris than healthy controls (P = .001). There was a significant inverse relation between level of 25 hydroxy vitamin D and severity of acne vulgaris before treatment (P = .001). Serum levels of 25 hydroxy vitamin D were significantly increased after isotretinoin treatment in patients with acne vulgaris (P = .001).

Conclusion

This study concluded that vitamin D may play a potential role in pathogenesis of acne vulgaris or acne vulgaris may have a negative effect on vitamin D synthesis. Further studies are needed to confirm these potential relations.



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EACMFS Awards

The Council of EACMFS wishes to ensure that all members of the Association are aware of the current awards and prizes that are available. These are designed to provide educational support and also to allow the opportunity for trainees and those who have recently achieved specialist status to visit units outside their own departments.

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Announcements

Dear Colleagues,

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Editorial Board



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Using Technology in Global Otolaryngology

Technology is integral to the diverse diagnostics and interventions of Otolaryngology. Historically, major advances in this field derive from advances of associated technologies. Challenges of visualization and surgical access are increasingly overcome by integrating endoscopic, electronic, and robotic instruments. Otolaryngology is often limited to urban areas and large academic centers, making it difficult to allocate care and resources to many underserved populations. The widespread use of technology has important implications in regards to global access to this field as telemedicine is most effectively applied to specialties that are heavily reliant on data and visuals that may be electronically disseminated.

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Pancreaticoduodenectomy for an Ampullary Region Carcinoma Occurred in Annular Pancreas Coexistent with Replaced Common Hepatic Artery

Introduction. Annular pancreas is a rare congenital abnormality characterized by a ring of pancreatic tissue surrounding the descending portion of the duodenum. Annular pancreas coexisting with replaced common hepatic artery which is also a rare anatomical variation has not been reported previously. Case Presentation. A 53-year-old man visited our hospital complaining of epigastric pain. Based on radiological examinations, he was diagnosed as having pancreatitis, annular pancreas, and hepatomesenteric trunk. One month later, obstructive jaundice developed. Endoscopic examination revealed ampullary region carcinoma. We performed pancreaticoduodenectomy using the "artery-first" approach. Discussion. Both annular pancreas and common hepatic artery anomaly are rare. High-quality preoperative imaging and awareness of such rare conditions are necessary for operative safety. Although the embryological relationship between these anomalies is uncertain, the present case may suggest some relevance between the two. Conclusion. The "artery-first" approach may be a useful method for pancreaticoduodenectomy in patients who have an anatomical abnormality.

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Herbert cannulated bone screw osteosynthesis in anterior mandibular fractures treatment: a comparative study with lag screw and mini-plate

Publication date: Available online 19 February 2018
Source:Journal of Oral and Maxillofacial Surgery
Author(s): Yehia El-Mahallawy., Haytham Al-Mahalawy.
PurposeHerbert bone screw is a successful minimally invasive mean of fracture fixation that is used routinely in orthopedic surgery. The aim of this study was to evaluate the clinical and radiographic performance of Herbert bone screw in the treatment of anterior mandibular fractures and compare it with the commonly established treatment modalities; lag screw and 2.0-mm miniplates.Materials and methodsThis study implemented a randomized clinical trial and enrolled a sample of patients with anterior mandible fractures. The primary predictor variable was treatment group categorized as Herbert bone screw (HBS), lag screw (LS), or miniplate (MP) fixation of the fracture. The primary outcome variables were the presence of interfragmentary mobility and radiodensitometric appraisal of fracture healing progression. The secondary outcome was the postoperative clinical evaluation. Other variables collected were grouped into demographic, fracture location, and intra-operative clinical data. All of the recorded data were documented, tabulated, computed, and analyzed. Statistical significance was set at 5% level.ResultsTwenty-one patients were selected and randomly allocated into the three groups based on the fixation modality utilized. There were no significant differences in demographic data for the 3 groups. There were no statistically significant differences in clinical evaluation outcomes. However, there was a statistically significant difference in the gain of mean postoperative bone density between the HBS and MP groups (P=0.012), and between LS and MP groups (P=0.045), but not between HBS and LS groups.ConclusionHerbert cannulated bone screw osteosynthesis provides a successful and minimally invasive treatment modality for the management of anterior mandibular fractures.



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Maxillary Interdental Osteotomies Have Low Morbidity For Alveolar Crestal Bone And Adjacent Teeth: A Cbct Image-Based Study

Publication date: Available online 19 February 2018
Source:Journal of Oral and Maxillofacial Surgery
Author(s): Daniel B. Rodrigues, Paulo S.F. Campos, Larry M. Wolford, Jaqueline Ignácio, João R. Gonçalves
PurposeMaxillary segmentation involving interdental osteotomies may have an adverse effect on the inter-dental crestal bone and adjacent teeth. The purpose of this study was to evaluate the effect of interdental osteotomies on surrounding osseous and dental structures, including adjacent teeth, using cone beam computed tomography (CBCT) technology, in patients submitted to segmental maxillary osteotomies.Patients and methodsThis retrospective cohort study evaluated interdental osteotomy sites between the lateral incisors and canines in patients treated with three-piece Le Fort I osteotomies. CBCT scans were assessed using Kodac Dental Imaging software at the time intervals, T0 (presurgery), T1 (immediate post-surgery), and T2 (post-surgery minimum of 11 months). The statistical analysis using a linear regression model was adjusted to compare the variables at the different time intervals. Injury to dental structures was assessed by radiological evidence of dental damage, requirement for endodontic treatment or tooth loss.ResultsThere were 94 interdental osteotomy sites in 47 patients evaluated in this study. The mean inter-radicular distance at T0 was 2.5 mm. There was a statistically significant increase in the inter-radicular distance (T1-T0) of 0.72 mm and a reduction of the alveolar bone crest height (T2-T0) of 0.19 mm (p < 0.001) for group 2. There was a weak correlation for this increase in the inter-radicular distance with changes in alveolar crest bone height. Potential complications associated with the interdental osteotomies such as iatrogenic damage to tooth structure, need for endodontic treatment, or tooth loss were not encountered in any patients.ConclusionsThere is very low morbidity for the interdental alveolar crest and the integrity of teeth adjacent to the interdental osteotomies for patients subjected to maxillary segmentation between lateral incisors and canines.



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Fiber-reinforced resin fixed prostheses on four short implants in severely atrophic maxillae: 1-year results of a prospective cohort study

Publication date: Available online 19 February 2018
Source:Journal of Oral and Maxillofacial Surgery
Author(s): Florian Wagner, Rudolf Seemann, Mauro Marincola, Rolf Ewers
PurposeThe aim of this paper was to report the 1-year outcomes of fixed full arch fiber-reinforced resin bridges on short implants in atrophic maxillary jaws.MethodsA prospective cohort study was designed and patients with severely atrophic maxillae, corresponding to Cawood and Howell class V and VI were included. The mesial and distal peri-implant bone levels were assessed on panoramic radiographs that were taken at the time of implant insertion (baseline) and during follow-up visits.ResultsA total of 18 patients with 72 implants inserted in atrophic maxillary jaws were included in this study. All patients had a follow-up visit one year after loading. The cumulative one-year patient-based implant survival rate (CSR) was 88.8%, the cumulative one-year implant-based survival rate 97.2%, respectively.The marginal bone level was -0.5±0.5mm at the time of loading (n=72) and -0.8±0.6mm (n=72) after one year. The MBL depended significantly on the depth at the time of insertion. No prosthetic failure such as chipping or fracture occurred within the first year of loading.ConclusionProsthetic rehabilitation of atrophic maxillae with prostheses supported by four 4.0 x 5.0 mm or 3.0 x 8.0 mm implants seems to be a viable and cost-effective treatment option in the short-term.



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Cervical lymph node metastatic status and adjuvant therapy predict the prognosis of salivary duct carcinoma

Publication date: Available online 19 February 2018
Source:Journal of Oral and Maxillofacial Surgery
Author(s): Kai Qian, Lu Di, Kai Guo, Xiaoke Zheng, Qinghai Ji, Zhuoying Wang
PurposeSalivary duct carcinoma (SDC) is an aggressive malignancy and is not yet fully understood. We designed this retrospective study to investigate the factors affecting the prognosis of salivary duct carcinoma and the effects of adjuvant therapies on clinical outcomes in patients.Materials and methodsPatients with major salivary gland duct carcinoma treated surgically between 2006 and 2016 were enrolled in the retrospective cohort study. Demographic data, clinical pathological characteristics and follow-up results were obtained. The prognostic indicators of overall survival (OS), locoregional failure-free survival (LRFFS) and distant metastasis-free survival (DMFS) were analyzed using the Kaplan–Meier method and the Cox Proportional Hazard Model.ResultsThe study sample comprised 66 patients, the majority of whom were male (81.8%). The 5-year OS, LRFFS and DMFS for all patients were 52.5, 63.9, and 51.3%, respectively. Univariate analysis showed that stages N2-3, lymph node involvement levels IV and V, ≥8 positive lymph nodes and extranodal extension were all negative prognostic indicators for OS. The only significant indicator in the multivariate analysis was the number of positive lymph nodes. Multivariate analysis revealed that extracapsular invasion and no adjuvant radiotherapy were risk factors for LRFFS, whereas lesions involving both glands and ≥8 positive lymph nodes were prognostic factors for DMFS. Further subgroup analysis showed that radiotherapy was only useful for patients with locally advanced lesions under local control.ConclusionCervical lymph node metastatic status is an important factor in predicting the prognosis of SDC patients. Adjuvant radiotherapy is useful for local control, especially for patients with stage T4 disease, but will not benefit OS and DMFS.



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Myopericytoma of the Lip: A Case Report of the Rare Lesion

Publication date: Available online 19 February 2018
Source:Journal of Oral and Maxillofacial Surgery
Author(s): Eric Strayer, Roger Throndson, Cecilia Clement, Keith McDaniel
Myopericytomas are rare benign tumors that show a distinctive, concentric perivascular proliferation of oval-to-spindle shaped myoid appearing cells that are predominantly arranged concentrically around thin-walled vascular channels.1 These lesions are similar in histologic appearance to hemangiopericytomas, myofibromas and glomus tumors. The myopericytoma is usually found in the distal extremities, but a handful of reports have shown the lesion to be present in the oral cavity.2 Review of literature to date only shows four other reported cases of myopericytomas occurring in the lips. Here we describe a case of myopericytoma in the lower lip of a 42 year old female.



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How Does the Remodeling Capacity of Children Affect the Morphological Changes of Fractured Mandibular Condylar Processes After Conservative Treatment?

Publication date: Available online 19 February 2018
Source:Journal of Oral and Maxillofacial Surgery
Author(s): Shiping Chang, Yan Yang, Yang Liu, Jingfu Wang, Wuyang Zhang, Qin Ma
PurposeOur aim was to explore how the remodeling capacity of children's mandibular condyles affected the morphological changes of fractured condyles after conservative treatment.MethodsA retrospective study was designed and performed on children and some adult patients with mandibular condylar fractures. Computed tomographic (CT) imaging was reviewed for all patients to analyze the morphological changes and risk factors of traumatic temporomandibular joint ankylosis.ResultsFrom 2012 to 2017, there were 81 patients younger than 18 and 10 adult patients who accepted treatment in our department. There were 23 young patients (aged < 18 years) with 41 fractured condyles and 10 adults with 14 fractured condyles who were managed with conservative treatment, and the morphological changes were analyzed with the aid of Mimics 19.0 software. The fractured condyles with intracapsular fractures completed the remodeling progress within 3-4 months and condyles with neck or base fractures took more than 6 months. Differentely, we found no remodeling in adults. Three of the 81 young patients suffered temporomandibular joint ankylosis. Each case was analyzed regarding the risk factors, morphological changes, and remodeling features. Finally, the common points of these cases were summarized.ConclusionsThe shape of fractured condyles can remold after conservative treatment in young patients, instead of bony fusion between the fractured fragments compared with the adult patients.



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Factors influencing post-surgical diplopia in orbital floor fractures and prevalence of other complications in a serie of cases

Publication date: Available online 19 February 2018
Source:Journal of Oral and Maxillofacial Surgery
Author(s): Marina Alexandra Gavin Clavero, M Victoria Simón Sanz, Andrea Mur Til, Úrsula María Jariod Ferrer
PurposeWe have conducted a review of the orbital fractures treated in our hospital for a period of four years. We have reviewed its several complications, and especially the relationship of postsurgical diplopia with different pre-surgical variables: age, sex, type of fracture, fracture area, coronal and sagittal diameter of the fracture, fractured floor area, time to surgery, existence of muscular herniation and muscle entrapment.Patients and methodsFractures involving the orbital floor still remain a controversial issue in terms of surgical treatment and the time required from trauma to surgery. Surgical indications are divided into aesthetic and functional, and they greatly differ from one medical center to another. It has been observed that the variables that influence postoperative complications vary in the different studies reviewed. Post-surgical diplopia is one of the most important complications, and its relationship with pre-surgical variables has been the focus of this study. For the purpose of the present study, a bivariate and a multivariate analysis has been performed, accepting as significant the value p <0.05.Resultsaccording to the multivariate analysis, post-surgical diplopia is only associated with trap door fractures, regardless of all other variables, especially if these fractures are operated after 48 hours. In addition, the bivariate analysis has also reported that fractures involving muscular herniation result in less diplopia and a better prognosis if operated before 48 hours. Notwithstanding, these results are not statistically significant.ConclusionSurgery before 48 hours statistically improves fractures with real muscular entrapment, and improves (although not statistically significantly) patients with muscular herniation.



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Author response to “do we need to keep playing this tune?”

We thank Dr. Weinberger for the interest in our publication "Dexamethasone for inpatient childhood asthma exacerbations is as effective as short-acting corticosteroid treatment."1 The growing number of studies in this area reflects the importance of refining our approach to treating children with acute asthma exacerbations, the most common reason for childhood hospitalizations in the U.S.2 We believe our report fills an important knowledge gap by answering the question whether a two-dose dexamethasone regimen is as effective as short-acting systemic corticosteroid for hospitalized children.

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Results of an asthma education program delivered via telemedicine in rural schools

Asthma morbidity is high among low-income children living in rural U.S. regions, yet few interventions have been designed to reduce asthma burden among rural populations.

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Erratum

In the editorial, "Is eosinophilic esophagitis a member of the atopic march?" (Ann Allergy Asthma Immunol. 2018;120(2):113–114), on page 113, "see page XXX in this issue" should have read "see pages 131–137 in this issue" to reference the CME Review article "The atopic march: Critical evidence and clinical relevance" (Ann Allergy Asthma Immunol. 2018;120(2):131–137). The online version of the editorial has been corrected to reflect this change.

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Assessment of tumor margins in head and neck cancer using a 3D-navigation system based on PET/CT image-fusion – a pilot study

Determination of tumor margins in patients with squamous cell carcinoma of the head and neck (SCCHN) is mostly based on preoperative magnetic resonance imaging (MRI) or computed tomography scans (CT). Local recurrence of disease is often correlated with the presence of positive resection margins after surgical treatment. Positron emission tomography/computed tomography (PET/CT) imaging plays a crucial role in the assessment of patients with SCCHN. The purpose of this study was to determine whether PET/CT could predict tumor extension.

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Combination of Chemoradiation With Immunotherapy in Inoperable œsophageal Cancer

Condition:   Inoperable œsophageal Cancer
Interventions:   Drug: Nivolumab;   Drug: Ipilimumab;   Other: Chemoradiation
Sponsor:   European Organisation for Research and Treatment of Cancer - EORTC
Not yet recruiting

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Pembrolizumab With Intratumoral Injection of Clostridium Novyi-NT

Conditions:   Malignant Neoplasm of Breast;   Malignant Neoplasms of Digestive Organs;   Malignant Neoplasms of Eye Brain and Other Parts of Central Nervous System;   Malignant Neoplasms of Female Genital Organs;   Malignant Neoplasms of Ill-defined Secondary and Unspecified Sites;   Malignant Neoplasms of Independent (Primary) Multiple Sites;   Malignant Neoplasms of Lip Oral Cavity and Pharynx;   Malignant Neoplasms of Male Genital Organs;   Malignant Neoplasms of Mesothelial and Soft Tissue;   Malignant Neoplasms of Respiratory and Intrathoracic Organs;   Malignant Neoplasms of Thyroid and Other Endocrine Glands;   Malignant Neoplasms of Urinary Tract
Interventions:   Drug: Pembrolizumab;   Biological: Clostridium Novyi-NT;   Drug: Doxycycline
Sponsors:   M.D. Anderson Cancer Center;   BioMed Valley Discoveries, Inc;   Merck Sharp & Dohme Corp.
Not yet recruiting

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Outcomes of Prophylactic Swallowing Therapy in Patients Undergoing Definitive Chemoradiation for Head and Neck Cancer

Conditions:   Head and Neck Cancer;   Oropharynx Cancer
Interventions:   Other: Prophylactic Swallowing Home Exercise Program;   Other: Penetration/Aspiration Scale;   Other: Functional Oral Intake Scale;   Behavioral: Eating Assessment Tool-10;   Behavioral: University of Washington Quality of Life;   Other: Performance Status Scale for Head and Neck Cancer Patients;   Other: Clinician-Directed Prophylactic Swallowing Exercises
Sponsor:   University of Miami
Not yet recruiting

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Computed tomography analysis of frontal cell prevalence according to the International Frontal Sinus Anatomy Classification

Background

The International Frontal Sinus Anatomy Classification (IFAC) is an international consensus document published in 2016 to standardize the nomenclature of cells in the region of the frontal recess and frontal sinus. The IFAC was designed to be surgically relevant and anatomically precise. The current study was undertaken to assess the prevalence of the frontal cell variants as defined by the IFAC, as well as to determine the interrater reliability of the IFAC.

Methods

Three independent reviewers examined triplanar nondiseased maxillofacial computed tomography (CT) scans to assess the anatomy of the frontal recess according to the IFAC system. The prevalence of each cell type was assessed and interrater reliability was measured using an intraclass correlation coefficient (ICC).

Results

One hundred CT scans (200 sides) were examined. Of the 200 sides, 96.5% contained an agger nasi cell (ICC, 0.82; 95% confidence interval [CI], 0.77-0.86), 30.0% contained a supra agger cell (ICC, 0.89; 95% CI, 0.86-0.92), 20.0% contained a supra agger frontal cell (ICC 0.80; 95% CI 0.74-0.84), 72.0% contained a supra bulla cell (ICC, 0.81; 95% CI, 0.76-0.85), 5.5% contained a supra bulla frontal cell (ICC, 0.71; 95% CI, 0.63-0.77), 28.5% contained a supraorbital ethmoid cell (ICC, 0.78; 95% CI, 0.72-0.83), and 30.0% contained a frontal septal cell (ICC, 0.80; 95% CI, 0.74-0.84). The ICC was good to excellent for identification of all frontal cell types.

Conclusions

This study describes the normative distribution of frontal recess cells in a nondiseased population according to IFAC and demonstrates favorable interrater reliability of the classification system.



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The impact of video nasal endoscopy on patient satisfaction

Background

Video nasal endoscopy has significant associated expense for practices, but its use has been justified by the benefit it provides to the examiner. No study has examined the perceived benefit to the patient. In this study, the impact of video endoscopy on patient satisfaction is evaluated.

Methods

A prospective, randomized, single-blinded study was performed on new patients receiving care in the rhinology clinics of a tertiary-care center. Patients were randomized into the standard endoscopic examination (SEE) or video endoscopic examination (VEE) groups. SEE patients had their examination performed with the physician viewing the exam through the eyepiece, without a video camera, and subsequently had their examination explained. VEE patients had their examination performed with a video camera attached to the scope, recorded, and then used for the explanation. All patients were asked to complete the 22-item Sino-Nasal Outcome Test (SNOT-22) and the 18-item Patient Satisfaction Questionnaire Short-Form (PSQ-18). Statistical analysis was performed to identify differences between cohorts.

Results

There was no significant demographic difference between groups. SNOT-22 total and domain scores were similar between both groups (p > 0.05). VEE patients had significantly higher general satisfaction (p = 0.048) and communication (p = 0.028) domains within the PSQ-18. There was no difference between other domains (p > 0.05).

Conclusion

VEE is a valuable tool for otolaryngologists and patients. Further studies evaluating variance in patient compliance and symptomatology may provide further justification for its use.



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Adrenal Hemangioma: A Case of Retroperitoneal Tumor

Introduction. Adrenal hemangioma is a rare disease, with only some 60 cases reported previously. Due to the difficulty of the preoperative diagnosis of adrenal hemangioma, almost all of the cases were diagnosed by a histopathological analysis of surgical specimens. Case Presentation. A 52-year-old man was referred to our department for further examination of his left retroperitoneal tumor. He had received hemodialysis due to chronic renal failure resulting from membranous nephropathy. Computed tomography revealed a mass around his left hilum. Magnetic resonance imaging (MRI) and positron-emission tomography (PET)-CT were unable to confirm or deny malignancy, and tumor markers, including CEA and CA19-9, showed slight elevation. His tumor grew from 38 mm to 54 mm in diameter in 7 months of follow-up. We therefore planned retroperitoneal tumor resection with left nephrectomy. Histopathologically, hyperplastic small vessels with hemorrhaging and denaturation were seen. The endothelial cells showed no variants or division of the nucleus. Based on this diagnosis, no further therapy was performed. He has had no recurrence in the eight months since the surgery. Conclusion. We herein report a rare case of adrenal hemangioma.

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Experimental study on TGF-β1-mediated CD147 expression in oral submucous fibrosis

Abstract

Objective

Although previous evidence indicates that CD147 is closely involved in the progression of organ fibrosis and various signaling pathways have been proven to regulate its expression, the role of CD147 in oral submucous fibrosis (OSF) remain largely unknown.

Methods

In the present study, we investigated the expression of CD147 and transforming growth factor β1 (TGF-β1) in human samples of an OSF tissue array by immunohistopathology. Pearson's correlation analysis was conducted to explore the correlation between CD147 and TGF-β1. Immunofluorescence and Western blotting were used to investigate to levels of CD147 in Human Oral Keratinocytes (HOKs) followed by TGF-β1 or LY2157299, an inhibitor of TGF-β1 receptor and arecoline stimulation.

Results

We found that CD147 was highly expressed in both HOKs and the fibrotic oral mucosa and that this expression was correlated with TGF-β1 expression. Additionally, CD147 levels were significantly associated with the fibrosis stage. The TGF-β1 signaling pathway was found to be mainly responsible for CD147 up-regulation after arecoline treatment whereas inhibition of TGF-β1 down-regulated CD147 expression.

Conclusion

Our findings suggest arecoline promotes CD147 expression via the TGF-β1 signaling pathway in HOKs, whereas overexpression of CD147 may promote OSF progression.

This article is protected by copyright. All rights reserved.



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Assessment of tumor margins in head and neck cancer using a 3D-navigation system based on PET/CT image-fusion – a pilot study

Publication date: Available online 19 February 2018
Source:Journal of Cranio-Maxillofacial Surgery
Author(s): Tomislav A. Zrnc, Jürgen Wallner, Wolfgang Zemann, Mauro Pau, Christian Gstettner, Luka Brcic, Alexandre T. Assaf, Hamid Hassanzadeh, Matthias Feichtinger, Katja Schwenzer-Zimmerer
ObjectivesDetermination of tumor margins in patients with squamous cell carcinoma of the head and neck (SCCHN) is mostly based on preoperative magnetic resonance imaging (MRI) or computed tomography scans (CT). Local recurrence of disease is often correlated with the presence of positive resection margins after surgical treatment. Positron emission tomography/computed tomography (PET/CT) imaging plays a crucial role in the assessment of patients with SCCHN. The purpose of this study was to determine whether PET/CT could predict tumor extension.MethodsIn 12 patients who underwent surgical treatment of primary SCCHN (Stage III-IV) F18-FDG PET/CT image-fusion was performed on a 3D navigation-system based workstation. Image-guided needle biopsies were obtained from four different, color-coded metabolic areas within the tumor. The histopathological findings were correlated with findings on corresponding PET/CT scans.Results81.3% of biopsies from the central area were positive. Specimens taken from the outer metabolic zone were positive in 66.7% of the patients. The highest incidence of positive biopsies was found in the zone adjacent to the outermost area. There was a statistically significant difference in positive tumor histopathology when comparing the various metabolic zones (p=0.03).ConclusionExact determination of tumor is an important research topic, although results remain controversial. The results of this study suggest that in some cases PET scans may overestimate tumor extension.



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A Rare Case of Carotid Web Presenting with Ischemic Stroke in a Young Woman and a Brief Review of the Literature

Carotid web is a radiological description of a shelf-like intraluminal filling defect in the carotid bulb. It is histologically defined as atypical fibromuscular dysplasia (FMD), with abnormal fibrosis and smooth muscle cell hyperplasia in the tunica intima. The spur-like intraluminal protrusion can serve as a nidus for thrombus formation, which could cause systemic embolism and ischemic strokes. We report a case of a 20-year-old female patient presenting with acute ischemic stroke in the ipsilateral middle cerebral artery (MCA) territory. We also discuss the incidence, the prevalence, the pathophysiology, the treatment, and the recurrence of carotid web based on the currently available literature.

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Human papillomavirus infection and lichen sclerosus: coincidence or link?



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Aggressive fibromatosis in the infratemporal fossa presenting as trismus: a case report

Here we report a very rare entity of an infratemporal region aggressive fibromatosis in a 23-year-old Tharu man who had presented with the symptoms of painless but progressive trismus.

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When trichoscopy enlightens clinics: more about discoid lupus



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Author response to “do we need to keep playing this tune?”

Publication date: Available online 19 February 2018
Source:Annals of Allergy, Asthma & Immunology
Author(s): Sara Seghezzo, Donald H. Arnold, James C. Gay, Paul E. Moore, David P. Johnson




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Erratum

Publication date: Available online 19 February 2018
Source:Annals of Allergy, Asthma & Immunology





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Comparison of single versus two non-compression miniplates in the management of unfavourable angle fracture of the mandible: a prospective randomized clinical study

Abstract

Purpose

The purpose of this study was to compare the efficacy of single versus two non-compression miniplates in the management of unfavourable angle fracture of mandible.

Materials and methods

A total of 28 patients who required open reduction of mandibular angle fracture were included in the study. The patients were randomly divided into two groups. Group I comprised of patients treated with two miniplates and those in group II were treated with single non-compression miniplate. The parameters of assessment were malocclusion, surgical site infection, need for implant removal, duration of surgery, inter-incisal mouth opening and cost of implants used, in both the groups. Statistical analysis was carried out to compare all the parameters.

Results

Out of 14 patients in group II, inadequate reduction was noticed in three patients, whereas screw loosening had occurred in two cases. Screw loosening was always associated with chronic infection. In these cases, hardware removal was deemed necessary. Plate bending was observed in two cases resulting in malocclusion and difficulty in eating. Non-union of fracture occurred in one patient treated in group II. In group I, no plate bending, screw loosening, surgical site infection, non-union or malocclusion was observed. No patient had to undergo implant removal in group I.

Conclusion

In the management of unfavourable mandibular angle fracture, two miniplates must be preferred over the use of single miniplate as using two miniplates results in better results with minimal complications.



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Table of Contents



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CME Overview



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Dupilumab: A review of its use in the treatment of atopic dermatitis

Atopic dermatitis (AD) is a chronic, pruritic immune-mediated inflammatory dermatosis characterized by a T helper 2 (Th2) immune response phenotype and may be associated with systemic inflammation. Dupilumab is an interleukin 4 (IL-4) receptor α-antagonist that inhibits IL-4 and IL-13 signaling through blockade of the shared IL-4α subunit. Blockade of IL-4/13 is effective in reducing Th2 response. Dupilumab has recently been approved in the United States and Europe for the treatment of adult patients with moderate-to-severe AD.

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Title Page



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Editorial Board



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Natural fruits, flowers, honey, and honeybees harbor Helicobacter pylori-positive yeasts

Abstract

Background

For controlling Helicobacter pylori infection in humans, its environmental reservoir should be determined. In this study, yeast isolates from an isolated village in Iran were studied for the intracellular occurrence of H. pylori.

Materials and Methods

In this study, yeasts were isolated from 29 samples, including oral swabs from villagers (n = 7), flowers and fruits (n = 6), honey and honeybees (n = 12) and miscellaneous samples (4). Yeasts were classified into 12 RFLP groups and identified by amplification of 26S rDNA and sequencing. DNA extracted from the yeast cells was examined for the presence of H. pylori using PCR.

Results

Of the 29 yeasts, 27 were members of different genera of Ascomycete. H. pylori was detected in 5 of 9 Candida (55.5%), 4 of 5 Komagataella (80%), 3 of 4 Pichia (100%), 2 of 2 Cytobasidia (100%), 2 of 2 Hansenia (100%), 1 of 1 Meyerozyma (100%) and 2 of 3 not sequenced (66.6%) yeasts. Distribution of 19 of 29 (65.5%) H. pylori-positive yeasts within 4 groups was as follows: 1 of 7(14.3%) in oral swabs, 5 of 6 (83.3%) in flowers and fruits, 10 of 12 (83.3%) in honey and the bee group and 3 of 4 (75%) in miscellaneous.

Conclusions

Different genera of osmotolerant yeasts from flowers, fruits, honey, and honeybees contained H. pylori in their vacuole. High frequency of H. pylori-positive yeasts in these samples might be related to their high sugar content. Insects such as honeybees that facilitate transfer and easy access of these yeasts to nectars serve as the main reservoirs of these yeasts, playing an important role in their protection and dispersal. Accordingly, H. pylori inside these yeasts can be carried by honeybees to different sugar- and nutrient-rich environments. Sugar-rich environments and honeybees play an important role in distribution of H. pylori-positive yeasts in nature.



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Association of stat6 gene variants with food allergy diagnosed by double-blind placebo-controlled food challenges

Abstract

This study describes the role of two STAT6 gene variants in food allergy using data of patients and their parents who underwent double-blind placebo-controlled food challenges (DBPCFCs). After quality control, 369 trios were analyzed including 262 children (71.0%) with food allergy. Associations were tested by family based association testing (FBAT). The A alleles of both SNPs were associated with food allergy (p=0.036 and p=0.013 for rs324015 and rs1059513, respectively). Furthermore, these A alleles were associated with peanut allergy, higher sIgE levels to both peanut and cow's milk, more severe symptoms and higher eliciting doses during peanut and cow's milk DBPCFCs (all p<0.05). In silico analysis indicates that the identified risk variants increase STAT6 expression which stimulates the differentiation of CD4+ T cells to the Th2 subset. In conclusion, STAT6 variants may be involved in the pathophysiology of food allergy and their role seems to be independent of the allergenic food.

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Atopic Dermatitis in Diverse Racial and Ethnic Groups – Variations in Epidemiology, Genetics, Clinical Presentation, and Treatment

Abstract

Atopic dermatitis (AD) is a chronic inflammatory skin condition that affects diverse ethnic groups with varying prevalence. Despite a predominance of studies in individuals of European ancestry, AD has been found to occur more frequently in Asian and black individuals than whites. Therefore, an understanding of the unique clinical features of AD in diverse ethnic groups, as well as the differences in genetic polymorphisms that influence susceptibility to AD and response to current therapies, is paramount for management of an increasingly diverse patient population. In this article, we review key nuances in the epidemiology, pathophysiology, clinical presentation, and treatment of AD in non-white ethnic groups, which are largely under-appreciated in the literature. We highlight the need for studies evaluating the tissue molecular and cellular phenotypes of AD in non-white patients, as well as greater inclusion of minority groups in clinical trials, in order to develop targeted treatments for a multi-ethnic population.

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